Featured image of post Unix Philosophy (The Essence of Modular Design): The Art of Software Woven by Single Responsibility and Pipes

Unix Philosophy (The Essence of Modular Design): The Art of Software Woven by Single Responsibility and Pipes

A deep dive into the essence of 'modular design' underlying the Unix philosophy. A thorough explanation of timeless principles such as programs that do one thing well and coordination through text streams, which are still relevant to modern software engineering.

Featured image of post What is 'Metcalfe's Law' Governing Network Value? A Comprehensive Guide to Using It in Business Strategy

What is 'Metcalfe's Law' Governing Network Value? A Comprehensive Guide to Using It in Business Strategy

Metcalfe's Law states that 'the value of a network is proportional to the square of the number of users.' We delve deeply into the essence of network effects, the secret to the growth of SNS and platform businesses, the history of the law, its mathematical background, and its applications and limitations in modern business.

Featured image of post What is Dunbar's Number? A Comprehensive Guide to the Cognitive Limits of Relationships and Its Application to Organization Design

What is Dunbar's Number? A Comprehensive Guide to the Cognitive Limits of Relationships and Its Application to Organization Design

Dunbar's number states that humans can only maintain stable relationships with up to 150 people. In this article, we take a deep dive into the biological basis of this principle proposed by evolutionary psychologist Robin Dunbar, its implications for relationships in the era of social media, and its applications to organizational design when companies scale.

Featured image of post What is Parkinson's Law? A Complete Guide to How Work and Time Expand and How to Overcome It

What is Parkinson's Law? A Complete Guide to How Work and Time Expand and How to Overcome It

An incredibly deep dive into Parkinson's Law, which states that "work expands so as to fill the time available for its completion." We comprehensively explore its historical background, psychological mechanisms, and concrete methods to overcome it in business and daily life. A complete guide for time management and productivity improvement.

Featured image of post 【Prisoner's Dilemma】How Game Theory Exposes the Limits of Human Rationality and Cooperation

【Prisoner's Dilemma】How Game Theory Exposes the Limits of Human Rationality and Cooperation

A comprehensive guide to the 'Prisoner's Dilemma', game theory's representative paradox. We thoroughly explain the mechanism by which individual rational choices lead to the worst outcome for the whole, and its applications in business, international politics, and biology. Exploring the conditions for mutual cooperation through Tit-for-Tat strategies and evolutionary game theory.

Featured image of post How fusion power works: turning the reaction that powers stars into usable electricity

How fusion power works: turning the reaction that powers stars into usable electricity

From deuterium–tritium reactions and plasma confinement to tokamaks, stellarators, laser fusion, energy gain, fuel breeding, materials, and power systems: fusion science and engineering explained with diagrams and calculations.

Featured image of post How nuclear power works: from fission heat to electricity, and why cooling must continue after shutdown

How nuclear power works: from fission heat to electricity, and why cooling must continue after shutdown

Understand nuclear power from binding energy and chain reactions to delayed neutrons, PWRs, BWRs, turbines, decay heat, and spent fuel, with history, diagrams, and worked examples.

Featured image of post How search engines work: collecting the web, organizing information, and finding useful answers

How search engines work: collecting the web, organizing information, and finding useful answers

From crawling and inverted indexes to BM25, PageRank, semantic search, distributed systems, and evaluation: understand what makes search fast and what its results can and cannot tell us.